Not single-handed did he expect to do so. His purpose henceforth was to watch Doria unseen and so discover whom he served. Thus he would kill two birds with one stone and simplify action for Peter Ganns when he returned.

Brendon climbed steadily upward and presently sat down to rest upon a little, lofty plateau where, in the mountain scrub, grew lilies of the valley and white sun-rose. Idly he sat and smoked, marked the steamers creep, like waterman beetles, upon the shiny surface of the lake stretched far below, watched a brown fox sunning itself on a stone and then plucked a bunch of the fragrant valley lilies to take to Jenny that night when he came to sup at the Villa Pianezzo. But the blossoms never reached the hand of Mrs. Doria.

Suddenly, as he rose from this innocent pastime, Mark became aware that he was watched and found himself face to face with the object of his search. Robert Redmayne stood separated from him by a distance of thirty yards behind the boughs of a breast-high shrub. He stood bare-headed, peering over the thicket, and the sun shone upon his fiery red scalp and tawny mustache. There could be no mistaking the man, and Brendon, rejoicing that daylight would now enable him to come to grips at last, flung down his bouquet and leaped straight for the other.

But it appeared that the watcher desired no closer contact. He turned and ran, heading upward for a wild tract of stone and scrub that spread beneath the last precipices of the mountain. Straight at this cliff, as though familiar with some secret channel of escape, the red man ran and made surprising speed. But Mark found himself gaining. He strove to run the other down as speedily as possible, that he might close, with strength still sufficient to win the inevitable battle that must follow, and effect a capture.

He was disappointed, however, for while still twenty yards behind and forced to make only a moderate progress over the rocky way he saw Robert Redmayne suddenly stop, turn and lift a revolver. The flash of the sun on the barrel and the explosion of the discharge were simultaneous. As the red man fired, the other flung up his arms, plunged forward on his face, gave one convulsive tremor through all his limbs, and moved no more. The discovery, the chase and its termination had occupied but five minutes; and while one big man, panting from his exertions, approached only to see that his fallen victim showed no sign of life, the other, with his face amid the alpine flowers, remained where he had dropped, his arms outstretched, his hands clenched, his body still, blood running from his mouth.

The conqueror took careful note of the spot in which he stood and bringing a knife from his pocket blazed the stem of a young tree that rose not very far from his victim. Then he disappeared and peace reigned above the fallen. So still he lay that another fox, scared from its siesta, poked a black muzzle round a rock and sniffed the air; but it trusted not appearances and having contemplated the recumbent object lifted its head, uttered a dubious bark and trotted away. From on high an eagle also marked the fallen man, but swiftly soared upward to the crown of the mountain and disappeared. The spot was lonely enough, yet a track ran within one hundred yards and it often happened that charcoal burners and their mules passed that way to the valleys.

None, however, came now as the sun turned westward and the cool shadow of the precipice began to creep over the little wilderness at its feet. Many hours passed and then, after night had flooded the hollow, there sounded from close at hand strange noises and the intermittent thud of some metal weapon striking the earth. The din ascended from a rock which lifted its grey head above a thicket of juniper; and here, while the flat summit of the boulder began to shine whitely under the rising moon, a lantern flickered and showed two shadows busy above the excavation of an oblong hole. They mumbled together and dug in turn. Then one dark figure came out into the open, took his bearings, flung lantern light on the blazed tree trunk, and advanced to a brown, motionless hump lying hard by.

Infinite silence reigned over that uplifted region. Above, near the summit of the mountain, flashed the red eye of a charcoal burner's fire; beneath only the plateau sloped to a ragged edge easterly, for the lake was hidden under the shoulder of the hills. No firefly danced upon this height; but music there was, for a nightingale bubbled his liquid notes in a great myrtle not ten yards from where the still shape lay.

The dark, approaching figure saw the object of his search and came forward. His purpose was to bury the victim, whom he had lured hither before destroying, and then remove any trace that might linger upon the spot where the body lay. He bent down, put his hands to the jacket of the motionless man, and then, as he exerted his strength, a strange, hideous thing happened. The body under his touch dropped to pieces. Its head rolled away; its trunk became dismembered and he fell backward heaving an amorphous torso into the air. For, exerting the needful pressure to move a heavy weight, he found none and tumbled to the ground, holding up a coat stuffed with grass.

The man was on his feet in an instant, fearing an ambush; but astonishment opened his mouth.